Platen presses

BPERFORMING OPERATIONS TRANSPORTING B41Printing, stamps B41FPRINTING MACHINES OR PRESSES

B41F1/00Platen presses

B41F1/02Hand-operated platen presses B41F1/04for mono-impression printing B41F1/06with platen maintained parallel to bed during movement B41F1/08on webs B41F1/10for multi-impression printing in one or more colours B41F1/12on sheets B41F1/14using swinging platens, or forme supports B41F1/16for offset printing B41F1/18for lithography B41F1/20for perfecting sheets B41F1/22specially adapted for printing heads B41F1/24specially adapted for proof printing B41F1/26Details B41F1/265Conveying webs B41F1/28Sheet-conveying, -aligning or -clamping devices B41F1/30using rotary grippers B41F1/32using air pressure B41F1/34Registering devices B41F1/36Clamps for conveying sheets and for holding same on the platens B41F1/38Platens or type-beds B41F1/40Inking units B41F1/42using flat inking elements B41F1/44using inking ribbons B41F1/46using rollers B41F1/48pivoting around the platen or base B41F1/50supported on carriages for movement in or on runways B41F1/52Carriage driving gear B41F1/54Printing-pressure control devices B41F1/56Auxiliary devices B41F1/565Numbering devices B41F1/58Arrangements of counting devices for counting sheets B41F1/60Safety devices B41F1/62for preventing injury to operator B41F1/64to the hands of the operator B41F1/66responsive to incorrect operating conditions